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sidaptoOffline
15 Post subject: [SOLVED] ETH0 occasionally switching off  PostPosted: 03.03.2012, 14:35



Joined: 2012-03-03
Posts: 5

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Hi there.
I'm running Aptosid on my homeserver and occasionally it will drop all connections and kind of "block the internet" until i press any key on the keyboard.
This happens almost daily, but not in a steady pattern as i could observe.
I assume it's a problem with some kind of powersaving-daemon who is simply switching off my Ethernet-Card - while it isn't even idle though.

Does anyone have a clue how to fix this?

ifconfig output on eth0 (Hardware Adresse obscured)
      Code:
eth0      Link encap:Ethernet  Hardware Adresse 00:00:00:00:00:00
          inet Adresse:192.168.2.2  Bcast:192.168.2.255  Maske:255.255.255.0
          inet6-Adresse: fe80::250:fcff:feed:6e8b/64 Gültigkeitsbereich:Verbindung
          UP BROADCAST RUNNING MULTICAST  MTU:1450  Metrik:1
          RX packets:744689 errors:12 dropped:4584 overruns:1 frame:0
          TX packets:778858 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:1000
          RX bytes:449869535 (429.0 MiB)  TX bytes:176823506 (168.6 MiB)
          Interrupt:18 Basisadresse:0x8000


lspci output on ethernet controller
      Code:
00:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)


Last edited by sidapto on 18.03.2012, 18:03; edited 1 time in total
 
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sidaptoOffline
Post subject: RE: ETH0 occasionally switching off, misconfigured powersavi  PostPosted: 10.03.2012, 16:13



Joined: 2012-03-03
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Doesn't anyone have some idea what i could try or which config-file i might look into?

I've looked for a solution inside /etc/pm/ - there are 3 subdirectorys - all empty except "sleep.d". Inside there's a file called "74ifplugd" in wich i added the line "exit 0" on top. Still, my problem persists.

I'm kinda lost here, any advice is welcome.
 
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slhOffline
Post subject: RE: ETH0 occasionally switching off, misconfigured powersavi  PostPosted: 10.03.2012, 16:43



Joined: 2010-08-25
Posts: 746

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I would rather suspect a hardware reason, like broken cable (or just not seated properly) or issues with your switch(-port).
 
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sidaptoOffline
Post subject: RE: ETH0 occasionally switching off, misconfigured powersavi  PostPosted: 10.03.2012, 20:52



Joined: 2012-03-03
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Thanks for your reply. I'll exchange the cable, plug it into another port and see if the problem persists.
The fact that pressing any random key on the keyboard instantly fixes the problem (temporary) made me believe in a software-problem while the randomness of the problems occurance clearly speaks against that theory.
 
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sidaptoOffline
Post subject: RE: ETH0 occasionally switching off, misconfigured powersavi  PostPosted: 18.03.2012, 17:58



Joined: 2012-03-03
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After a full week without my Problem reappearing i can say: It was in fact the cable. d'oh!
Thank you so much for pointing me in the right direction, this was almost driving me nuts.
This one is solved. Thank you, thank you, thank you!
 
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slhOffline
Post subject: RE: ETH0 occasionally switching off, misconfigured powersavi  PostPosted: 18.03.2012, 18:12



Joined: 2010-08-25
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I once had lots of fun with an ethernet switch, which worked fine - until it lost power (switched off as part of a power strip, like all my gear when I'm not around), then it suddenly started to reflect incoming packages and totally killed the powered network segments (everything directly connected to the router), up to connection losses…
 
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